Most powerful space telescope ever to launch in 2018

NASA engineer Ernie Wright looks on as the first six flight ready James Webb Space Telescope’s primary mirror segments are prepped to begin final cryogenic testing at NASA’s Marshall Space Flight Center. (NASA/MSFC/David Higginbotham/Wikipedia) Greenbelt, MD (AFP) ā€” As the Hubble Space Telescope celebrates 25 years in space this week, NASA and its international partners areā€¦